Last updated on July 31st, 2016 at 11:16 am
Listview is very common and important in android most app use ListView to display data in list most common example Contact, Messenger etc. In this post i explain you how to create simple and custom listview in android. This post is focus on beginners and for those who want to learn how to create a simple and custom listview in android.
Simple ListView in Android
This is a simple application in which i use default android layout for ListView.
Creating New Project
1. Create new project in your Eclipse IDE / Android Studio and fill all the details File ⇒ New Project.
2. Open your main layout file inside res ⇒ layout ⇒ activity.xml. Now in this add listview.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MyActivity">
<ListView
android:id="@+id/list"
android:layout_width="match_parent"
android:layout_height="match_parent">
</ListView>
</RelativeLayout>
3. Now open your activity.java file inside src ⇒ com.package.name ⇒ Activity.java and write code to populate listView with data.
package com.customlist;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
import java.util.ArrayList;
public class MyActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my);
final ListView lt = (ListView)findViewById(R.id.list);
String[] val = new String[]{"Android", "PHP", "Webdesign"};
ArrayList<String> list = new ArrayList<String>();
for(int i= 0; i < val.length; i++){
list.add(val[i]);
}
ArrayAdapter<String> ad = new ArrayAdapter(this, android.R.layout.simple_list_item_1, list);
lt.setAdapter(ad);
lt.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
final String item = (String) adapterView.getItemAtPosition(i);
Log.e("Error", "-----------------------------"+item);
Toast.makeText(getApplicationContext(),"Position "+item, Toast.LENGTH_LONG).show();
}
});
}
}
In above code i create simple Array String and add that data to ArrayList after adding data to arraylist i use ArrayAdapter to add data to listview and also call default layout
ArrayAdapter<String> ad = new ArrayAdapter(this, android.R.layout.simple_list_item_1, list);
And after that i set data to Adapter using setAdapter.
Custom ListView in Android
Creating New Project
1. Create new project in your Eclipse IDE / Android Studio and fill all the details File ⇒ New Project.
2. Open your main layout file inside res ⇒ layout ⇒ activity.xml. Now in this add listview.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MyActivity">
<ListView
android:id="@+id/list"
android:layout_width="match_parent"
android:layout_height="match_parent">
</ListView>
</RelativeLayout>
3. Now create new xml layout file inside res ⇒ layout folder
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/tx"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</RelativeLayout>this is the layout we pass in our listview.
4. Now first create a Custom java class in which we extend ArrayAdapter and pass String to listview. In this i also use LayoutInflater to inflate my view in list.
package com.customlist2;
import android.app.Activity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;
/**
* Created by aneh on 8/25/2014.
*/
public class Custom extends ArrayAdapter<String> {
private final String[] text;
private final Activity context;
public Custom(Activity context, String[] text) {
super(context, R.layout.design, text);
this.text = text;
this.context = context;
}
@Override
public View getView(int position, View view, ViewGroup parent){
LayoutInflater inflate = context.getLayoutInflater();
View vie = inflate.inflate(R.layout.design, null, true);
TextView txt = (TextView) vie.findViewById(R.id.tx);
txt.setText(text[position]);
return vie;
}
}
5. Now open your Mainactivity.java and create a array string, and create object of class pass class object to setAdapter.
package com.customlist2;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.Toast;
public class MyActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my);
final String[] data = {"Aneh", "Test", "Thakur"};
Custom ct = new Custom(MyActivity.this, data);
// ListView
ListView list = (ListView)findViewById(R.id.list);
list.setAdapter(ct);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Toast.makeText(MyActivity.this, "You Clicked at " + data[position], Toast.LENGTH_SHORT).show();
}
});
}
}
In above i also use setOnItemClickListener to get click list item and display toast.
